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    November 21, 2025

    The $1M Question Retirement Calculators Can’t Answer

    Executive Summary

    Most retirement calculators start with one number — your income — and spit out a savings target. The problem is that approach ignores how your spending actually changes once you stop working. Retirement isn’t a flat line. Some costs disappear, new ones show up, and spending patterns shift between your early “go years” and later “flow years.” Relying only on a calculator means you miss these nuances. A better approach is to look closely at what you’ll really spend in retirement and build your plan around that.

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    The $1M Question Retirement Calculators Can’t Answer

    Most people start retirement planning with the question, “How much money do I need?” It’s a fair question — but it skips an even more important one: 

    What will I actually spend when I’m not working?”

    What do retirement calculators get wrong?

    Calculators assume you’ll spend a flat percentage of your current income every year in retirement, often 70–80%. That may be close in some cases, but it doesn’t reflect real life. Your spending categories change. Some job-related costs go away, while new retirement activities bring in fresh expenses. Treating retirement like a single, unchanging budget is one of the fastest ways to miss your true target.

    How does spending actually change when you stop working?

    Work-related costs — commuting, lunches out, professional dues, and wardrobe expenses — often disappear. That lowers your baseline expenses. But retirement also brings new choices. Some people are content with simple routines like reading, gardening, or spending time with family, which lowers discretionary spending. Others pursue travel, hobbies, or activities they couldn’t fit in before, which raises spending. The key is to be realistic about your lifestyle and budget accordingly.

    What are “go years” and “flow years” in retirement?

    Spending doesn’t stay level across retirement. Most people go through two broad phases. The “go years,” typically the first 8–10 years, bring more activity, travel, and new pursuits, which push spending about 20% above your baseline. The “flow years” that follow usually mean a slower pace, established routines, and more time close to home, with spending about 20% below baseline. Recognizing this pattern helps you budget in a way that matches how retirement actually unfolds.

    How do conservative and elevated lifestyles impact your retirement target?

    Lifestyle choices can make a million-dollar difference. A conservative retirement, with modest travel and hobbies, may require less than the generic calculator estimate. An elevated retirement, with frequent travel and expensive activities, may require far more. Using real spending patterns instead of flat assumptions shows whether you need to save more or whether you could retire sooner than a calculator suggests.

    Why is asking “What will I actually spend?” more accurate than using a calculator?

    Because it reflects your life, not just your income. Calculators apply broad averages, but your spending will be shaped by your habits, your priorities, and how you want to use your time. Starting with your expected expenses gives you a clearer, more personal retirement target. That way, you’re not relying on a one-size-fits-all formula that could be off by hundreds of thousands of dollars.

    The bottom line? Retirement planning isn’t about hitting a calculator’s number. It’s about aligning your money with the life you want to live. 

    That starts by asking the right question: What will I actually spend when I’m not working?

    Real wealth starts with real life. Don’t just plan the numbers. Plan the life.

    Contact Information

    Keith Demetriades, CFP®, CKA®, believes real wealth starts with real life. He created the 4D Client Experience to help guide decision-making and ensure your money works as a tool to support your life. If you’re ready for a financial plan that reflects how you live and what you’re building toward, contact Keith at (806) 223-1105 or visit Kingsview Partners.

    Disclaimer: The information provided in this blog is for educational purposes only and should not be considered financial advice. Please consult a qualified financial advisor to discuss your specific situation and needs. Past performance does not indicate future results, and all investments carry risks, including potential loss of principal. Any financial product or strategy references are purely illustrative and should not be construed as endorsements or recommendations.

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